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The dependence of formation of 1,2,3,3-tetrachlorobutane on the quantity of catalyst and temperature in chlorination of 1,3-dichloro-2-butene

J. Vojtko and M. Hrušovský

Department of Organic Technology, Slovak Technical University, Bratislava


Abstract: The relation between the addition of chlorine in a mixture of cis- and irons-1,3-dichloro- 2-butenes in order to prepare 1,2,3,3-tetraehlorobutane, catalysed by phosphorus pentachloride on one hand and the amount of catalyst and temperature on the other hand was studied. Phosphorus pentachloride used by the authors was proven to be a selective catalyst, significantly preferring addition of chlorine to substitution. The optimum amount of catalyst was found to be 0.25 ± 0.05 % (w/w) at 22 °C, expressed as an admixture of red phosphorus by weight of t h e mixture of l,3-dichloro-2-butenes. Temperature elevation considerably favours the selectivity of addition.

Full paper in Portable Document Format: 223a214.pdf (in Slovak)


Chemical Papers 22 (3) 214–219 (1968)

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